Red Sox reliever Tyler Thornburg will undergo season-ending surgery for thoracic outlet syndrome on Friday, Evan Drellich of CSN New England reports.
Thornburg, 28, never pitched in a Red Sox uniform since the club acquired him from the Brewers in December. He started developing arm issues early in spring training and never recovered.
Across parts of five seasons in the majors, Thornburg has a career 2.87 ERA with a 220/91 K/BB ratio in 219 2/3 innings. He was particularly impressive last season, when he saved 13 games and struck out 90 batters with a 2.15 ERA for the Brewers.
Anthony Fenech of the Detroit Free Press reports that Tigers starter Mike Fiers is dealing with a back issue and may not be ready for the start of the season. Manager Ron Gardenhire characterized the injury as a “stiff back” and added, “Maybe a little bit of a bulging disk or something like that.”
Fiers, 32, signed a one-year, $6 million deal with the Tigers in December. He has had a forgettable spring, yielding 12 runs on 10 hits and eight walks with seven strikeouts in 11 1/3 innings.
Fiers had a rotation spot locked up along with Michael Fulmer, Jordan Zimmermann, and Francisco Liriano. Matt Boyd and Daniel Norris were battling it out for the No. 5 spot. If Fiers opens the regular season on the 10-day disabled list, both could have spots in the rotation.